Evapotranspiration Calculations
Richmond Airport - April 2026 daily calculations
| Date |
Evapotrans- piration (mm) 0000- 2400 |
Rain (mm) 0900- 0900 |
Pan Evaporation (mm) 0900- 0900 |
Max Temp |
Min Temp |
Max Rel Hum (%) |
Min Rel Hum (%) |
Average 10m Wind Speed (m/sec) |
Solar Radiation (MJ/sq m) |
| 01/04/2026 | 6.9 | 0.0 | | 34.7 | 17.7 | 89 | 35 | 4.92 | 23.12 |
| 02/04/2026 | 6.7 | 0.0 | | 33.9 | 18.4 | 88 | 37 | 5.09 | 22.65 |
| 03/04/2026 | 7.3 | 0.0 | | 34.4 | 19.0 | 81 | 30 | 5.15 | 22.21 |
| 04/04/2026 | 7.1 | 0.0 | | 33.8 | 17.7 | 83 | 31 | 5.18 | 22.60 |
| 05/04/2026 | 7.3 | 0.0 | | 32.9 | 19.3 | 74 | 30 | 5.55 | 22.34 |
| 06/04/2026 | 7.2 | 0.0 | | 33.3 | 22.0 | 69 | 30 | 5.06 | 22.04 |
| 07/04/2026 | 6.9 | 0.0 | | 34.4 | 16.1 | 89 | 25 | 4.33 | 22.16 |
| 08/04/2026 | 6.4 | 0.0 | | 34.7 | 14.9 | 87 | 27 | 3.64 | 21.97 |
| 09/04/2026 | | 0.0 | | | 16.5 | 86 | 25 | 3.78 | 21.88 |
| 10/04/2026 | | | | 34.6 | | 87 | 27 | 3.66 | 21.52 |
| 11/04/2026 | 5.9 | 0.0 | | 35.5 | 15.5 | 86 | 26 | 2.87 | 21.00 |
| 12/04/2026 | 6.9 | 0.0 | | 32.3 | 15.6 | 82 | 22 | 4.80 | 21.40 |
| 13/04/2026 | 7.5 | 0.0 | | 32.7 | 12.6 | 67 | 23 | 5.51 | 21.23 |
| 14/04/2026 | 7.2 | 0.0 | | 33.4 | 12.4 | 72 | 21 | 4.79 | 21.07 |
| 15/04/2026 | 5.6 | 0.0 | | 33.7 | 19.5 | 91 | 34 | 4.33 | 15.84 |
| 16/04/2026 | 4.6 | 0.0 | | 33.0 | 23.0 | 96 | 53 | 4.01 | 16.61 |
| 17/04/2026 | 5.5 | 4.8 | | 34.3 | 22.0 | 97 | 46 | 4.13 | 20.59 |
| 18/04/2026 | 3.5 | 0.2 | | 31.2 | 21.8 | 97 | 54 | 2.60 | 13.15 |
| 19/04/2026 | 5.4 | 0.0 | | 34.7 | 19.6 | 97 | 39 | 3.56 | 19.14 |
| 20/04/2026 | 5.3 | 5.2 | | 33.4 | 21.1 | 95 | 38 | 3.57 | 19.24 |
| 21/04/2026 | 6.0 | 0.0 | | 32.8 | 16.1 | 97 | 29 | 4.20 | 20.89 |
| 22/04/2026 | 6.6 | 0.0 | | 32.2 | 14.5 | 92 | 22 | 4.91 | 20.58 |
| 23/04/2026 | 6.6 | 0.0 | | 31.8 | 12.9 | 89 | 25 | 5.30 | 20.59 |
| 24/04/2026 | 6.6 | 0.0 | | 31.2 | 13.5 | 88 | 27 | 5.82 | 20.42 |
| 25/04/2026 | 6.4 | 0.0 | | 30.9 | 12.5 | 85 | 22 | 4.92 | 20.18 |
| 26/04/2026 | 5.5 | 0.0 | | 30.4 | 10.4 | 88 | 30 | 4.34 | 18.42 |
| Totals: | 150.9 | 10.2 | | | | | | | |
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